Aunt Jackie’s Elixir Essentials: Biotin & Rosemary Hair & Scalp Oil Strengthens Hair & Encourages Hair Growth Biotin: Improves hair strength, shine, and volume. Rosemary: Improves circulation to the scalp, providing hair follicles with the nutrients and oxygen they need for healthy hair growth. Mint: Produces a cooling sensation that helps refresh and soothe itchiness. Offers natural anti-fungal properties, which helps with dryness, flaking and scalp health